Finding the Fourth Proportional to 1,279.24, 1,764.72 and 755.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279.24 : 1,764.72 = 755.02 : x
2. Step 2: Convert to fraction form
   1,279.24/1,764.72 = 755.02/x
3. Step 3: Cross multiply
   1,279.24x = 1,764.72 × 755.02
4. Step 4: Simplify right side
   1,279.24x = 1,332,398.89
5. Step 5: Solve for x
   x = 1,332,398.89/1,279.24
6. Step 6: Final answer
   x = 1,041.56